EP 2726199 A1 20140507 - CERIA ZIRCONIA ALUMINA COMPOSITION WITH ENHANCED THERMAL STABILITY
Title (en)
CERIA ZIRCONIA ALUMINA COMPOSITION WITH ENHANCED THERMAL STABILITY
Title (de)
CERIUMOXID-ZIRCONIUMOXID-ALUMINIUMOXID-ZUSAMMENSETZUNG MIT VERBESSERTER WÄRMEBESTÄNDIGKEIT
Title (fr)
COMPOSITION D'OXYDES DE CÉRIUM, ZIRCONIUM ET ALUMINIUM AVEC STABILITÉ THERMIQUE AMÉLIORÉE
Publication
Application
Priority
- EP 11005382 A 20110701
- EP 2012061110 W 20120612
- EP 12729459 A 20120612
Abstract (en)
[origin: EP2540391A1] A process for the preparation of a composition comprising Al-, Ce- and Zr-oxides, comprising (a) preparing an aqueous solution of a mixture of metal salts of cerium, zirconium and aluminium, wich aqueous solution optionally comprises one or more salts of the Rare Earth Metals other than cerium, (b) adding to the solution obtained in step (a) a base at temperatures from 0°C to 95°C and precipitating the mixed metal salts in the form of hydroxides or oxy-hydroxides, (c) optionally isolating the precipitate obtained in step (b), (d) treating the aqueous suspension obtained in step (b) or the isolated precipitate obtained in step (c) with a surfactant, and (e) isolating the precipitate obtained in step (d) and treating said precipitate at a temperature from 450°C to 1200°C; and a composition obtainable or obtained by such process.
IPC 8 full level
B01J 23/10 (2006.01); B01J 35/10 (2006.01); B01J 37/00 (2006.01); B01J 37/02 (2006.01); B01J 37/03 (2006.01); C01F 17/00 (2006.01); C01G 25/02 (2006.01)
CPC (source: CN EP KR RU US)
B01J 23/10 (2013.01 - CN EP KR US); B01J 35/613 (2024.01 - CN EP KR US); B01J 35/615 (2024.01 - CN EP KR US); B01J 37/0018 (2013.01 - CN EP KR US); B01J 37/0203 (2013.01 - CN EP KR US); B01J 37/03 (2013.01 - CN EP KR US); C01G 25/02 (2013.01 - CN EP KR US); B01J 21/063 (2013.01 - RU); B01J 23/04 (2013.01 - RU); B01J 23/10 (2013.01 - RU); B01J 37/031 (2013.01 - RU); B01J 2523/00 (2013.01 - CN EP KR US); C01P 2002/52 (2013.01 - CN EP US); C01P 2006/12 (2013.01 - CN EP US); C01P 2006/13 (2013.01 - CN EP US)
C-Set (source: CN EP US)
B01J 2523/00 + B01J 2523/31 + B01J 2523/3706 + B01J 2523/3712 + B01J 2523/3725 + B01J 2523/48
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2540391 A1 20130102; AR 086716 A1 20140115; BR 112013033834 A2 20170214; BR 112013033834 B1 20191217; CA 2837432 A1 20130110; CN 103619468 A 20140305; CN 103619468 B 20160907; CN 106964332 A 20170721; EP 2726199 A1 20140507; EP 2726199 B1 20200930; JP 2014520741 A 20140825; JP 5938097 B2 20160622; KR 102032478 B1 20191108; KR 20140033116 A 20140317; MX 2013014367 A 20140211; MX 361074 B 20181127; MY 169499 A 20190415; RU 2014103455 A 20150810; RU 2631511 C2 20170925; TW 201311348 A 20130316; US 2014141967 A1 20140522; US 9475035 B2 20161025; WO 2013004456 A1 20130110; ZA 201308809 B 20150826
DOCDB simple family (application)
EP 11005382 A 20110701; AR P120102237 A 20120622; BR 112013033834 A 20120612; CA 2837432 A 20120612; CN 201280032493 A 20120612; CN 201610839364 A 20120612; EP 12729459 A 20120612; EP 2012061110 W 20120612; JP 2014517570 A 20120612; KR 20137032968 A 20120612; MX 2013014367 A 20120612; MY PI2013702404 A 20120612; RU 2014103455 A 20120612; TW 101121337 A 20120614; US 201214128067 A 20120612; ZA 201308809 A 20131122